LMB - Lean Muscle Builder

R 600.00

High-protein shake to fuel adolescent lean muscle growth & development

A high-protein shake formulated for adolescents to fuel lean muscle growth, strength, and healthy development. Supports recovery, sustained energy, and performance—safe, clean, and effective.

CHOCOLATE VANILLA

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Overview

Fuels lean muscle growth
Supports healthy development
Boosts recovery after training
Provides sustained energy
Premium grass-fed whey protein
Balanced carb-to-protein ratio for growth
Free from harmful additives

Ingredients

Grass-Fed, Hormone-Free Whey ProteinHigh-quality, complete protein with all essential amino acids to support adolescent muscle repair, lean growth, and immune health—free from unnecessary additives.

Maltodextrin, Palatinose™ & Waxy Maize Starch
Balanced blend of quick and sustained-release carbohydrates to restore glycogen stores and provide steady energy without sugar crashes.

Fibersol®-2 Prebiotic Fiber
Supports digestive health, nutrient absorption, and gut comfort, ensuring the body makes the most of its protein intake.

goFAT® MCT Coconut Fat Powder
Clean, fast-absorbing fat source to fuel workouts, enhance recovery, and support healthy metabolism.

Chelated Trace Minerals
Highly bioavailable forms of zinc, chromium, selenium, boron, and more—support energy metabolism, hormone balance, immunity, and recovery.

12 Essential Vitamins
Promote energy production, protein synthesis, antioxidant protection, and immune resilience after intense activity.

Stevia Leaf Extract
Natural, non-nutritive sweetener for clean taste without added sugars or artificial ingredients.

Description

LMB is a high-protein shake designed for adolescents to fuel lean muscle growth, strength, and healthy development. With 20g of premium grass-fed whey protein and an optimal 2:1 carb-to-protein ratio, it supports muscle repair, replenishes energy, and promotes steady performance. A balanced blend of sustained-release carbs, vitamins, and minerals helps power training sessions and speed recovery, without excess sugar, stimulants, or harmful additives. Perfect between meals or after workouts, LMB provides clean, science-backed nutrition to help young athletes train stronger, build leaner, and perform better—day after day.

Direction

Mix three scoops (70g) with 250–300ml of milk or a milk alternative in a shaker bottle or blender.

What makes it different

At Bioteen, we believe adolescent athletes deserve nutrition created specifically for their growth stage—not oversized “mass gainers” overloaded with sugar, low-quality protein, or risky hormonal additives. LMB is a clean, science-backed formula built to fuel lean muscle growth, healthy development, and sustained performance without compromising well-being.

Every serving provides premium grass-fed, hormone-free whey protein, an optimal 2:1 carb-to-protein ratio, and a balanced blend of fast- and slow-release carbohydrates for steady energy and effective glycogen replenishment. Added MCTs supply clean, lasting fuel, while Fibersol®-2 supports gut health and nutrient absorption.

Chelated minerals and 12 essential vitamins work together to promote protein synthesis, energy metabolism, and immune strength—helping adolescent athletes recover faster and perform better. You won’t find artificial flavours, colours, preservatives, or fillers—just high-quality, bioavailable ingredients in a delicious Chocolate flavour that mixes smoothly with milk or milk alternatives.

With LMB, young athletes can train smarter, recover quicker, and build lean muscle the right way—day after day.

Benefits

Supports Lean Muscle Growth – Delivers premium protein in the right ratio to build strength without excess bulk.

Promotes Healthy Development – Fuels growing bodies with essential macro- and micronutrients.

Speeds Recovery – Reduces post-training soreness and helps athletes bounce back faster.

Sustains Energy Levels – Balanced carb blend prevents sugar crashes and fuels longer sessions.

Boosts Immune Function – Vitamins, minerals, and amino acids support resilience during intense training.

Gentle on Digestion – Grass-fed whey, MCTs, and prebiotic fiber make it easy to absorb and comfortable to use.

Clean, Safe Formula – No stimulants, hormonal boosters, or artificial additives.

LMB - Lean Muscle Builder

R 600.00

I'm using this product to help my very skinny eight year old twins (dosage adjusted for their age) to gain weight. They're both picky eaters and they love the taste. And mom's happy that they're getting the right nutrients at least one a day when they have their 'hot chocolate'.

Excellent product. My son loves the taste and enjoys drinking after hockey practice and matches. It helps fill the gap between meals.

My son is playing soccer for the U19 TUKS team and he swears by this product. We get it regularly. He is only 16 so the supplement helps him to hold his own.

My son has only been using it for a couple of weeks now. He has never been so keen on taking something that is so good for him.

Bought this for my son who does gym training three mornings a week. He is 13. He loves the flavour and taste as is (with milk) and also mixes it into smoothies. I love it because besides helping him to build muscle, it contains lots of dietary essentials I know he is not getting through regular eating.

1 2 3

Clean Label

No artificial colors, flavors, or preservatives-just transparent ingredients you can trust.

GMO Free

Made without

genetically modified

ingredients.

3rd Party Tested

Third-party certified

to meet rigorous quality and

safety standards.

Builds Lean Muscle & Strength

20 Grams of premium grass-fed, hormone-free whey protein with an optimal 2:1 carb-to-protein ratio fuels lean muscle growth, strength gains, and healthy development—without excess bulk.

Speeds Recovery & Reduces Soreness

MCTs, Fibersol®-2, and essential amino acids support muscle repair, replenish energy stores, and help athletes bounce back faster after training.

Sustains Energy Without Crashes

Balanced blend of fast- and slow-release carbohydrates delivers steady energy for training and daily activity without sugar spikes or unwanted fat gain.

Clean, Safe, Adolescent-Focused Formula

Free from stimulants, hormonal boosters, artificial flavours, colours, and preservatives—just a smooth, great-tasting Chocolate shake that mixes easily with milk or milk alternatives.

Lean Muscle

Healthy Growth

Fast Recovery

Sustained Energy

Immune Boost

Clean Fuel

How To Use

Scoop into blender.

Add Milk or Milk Alternative.

Enjoy.

Key Ingredients

Balanced blend of Blueberry, Vanilla, and Lavender for a soothing experience, enriched with L-theanine for serenity.

Grass-Fed, Hormone-Free Whey Protein

High-quality, complete protein source rich in essential amino acids—supports muscle repair, growth, and immune function without unwanted additives.

goFAT® MCT Coconut Fat Powder

Clean, fast-absorbing fat source to fuel workouts, enhance recovery, and support healthy metabolism.

Stevia Leaf Extract

A natural, non-nutritive sweetener providing clean sweetness without added sugars or artificial ingredients.

Grass-Fed, Hormone-Free Whey Protein

High-quality, complete protein source rich in essential amino acids—supports muscle repair, growth, and immune function without unwanted additives.

goFAT® MCT Coconut Fat Powder

Clean, fast-absorbing fat source to fuel workouts, enhance recovery, and support healthy metabolism.

Stevia Leaf Extract

A natural, non-nutritive sweetener providing clean sweetness without added sugars or artificial ingredients.

Frequently Asked Questions

What is LMB and how does it help adolescent athletes?

LMB is a high-protein, balanced carb-to-protein shake designed to fuel lean muscle growth, strength, and healthy development in adolescent athletes. It supports recovery, sustains energy, and provides essential vitamins and minerals—without excess sugar, fillers, or risky additives.

How does LMB support muscle growth and recovery?

LMB delivers 20g of premium grass-fed, hormone-free whey protein per serving with an optimal 2:1 carb-to-protein ratio. This combination fuels muscle protein synthesis, replenishes glycogen, and helps reduce soreness for faster recovery between sessions.

Can LMB help with energy and endurance?

Yes. Its blend of fast- and slow-release carbohydrates provides steady energy for training and competition—without the sugar spikes and crashes often seen in mass gainers. MCTs add clean, lasting fuel to power performance.

Is LMB safe for daily use?

Absolutely. LMB is formulated for adolescents aged 9 and older, using only clean, high-quality, research-backed ingredients. It contains no artificial flavours, colours, preservatives, stimulants, or hormonal boosters.

When should my adolescent have LMB for best results?

LMB can be enjoyed between meals, after training, or as a convenient breakfast shake. It’s especially effective within 30 minutes after exercise to support muscle repair and energy replenishment.

Can LMB be mixed with milk alternatives?

Yes. LMB mixes smoothly with water, regular milk, or alternatives like almond, oat, or soy—making it easy to customise for taste and dietary preferences.

Will LMB cause bloating or discomfort?

No. LMB uses easily digestible whey protein, balanced carbs, and gut-friendly prebiotic fibre to ensure efficient absorption—without the heaviness or discomfort associated with some protein shakes.

How is LMB different from other muscle-building shakes?

Unlike many mass gainers high in sugar and low-quality protein, LMB is specifically designed for adolescent athletes—offering premium whey protein, clean carbs, MCTs, and essential micronutrients to promote lean gains, sustained energy, and safe, long-term performance.

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Complete Nutrition Is Key to Adolescent Athletic Success

Without balanced, targeted nutrition, performance suffers, fatigue lingers, and injury risk rises.

Intense training challenges muscles, drains energy reserves, taxes the central nervous system, and depletes electrolytes. For adolescent athletes, these demands are compounded by rapid growth and development. LMB delivers premium protein, balanced carbohydrates, healthy fats, and essential micronutrients to help athletes build lean muscle, recover faster, and maintain consistent performance—day after day—while reducing burnout, overtraining, and injury risk.

Common Barriers to Peak Performance

Poor nutrition timing, inadequate recovery fuel, and nutrient gaps limit progress.

Many young athletes go into training under-fuelled or finish sessions without proper replenishment—grabbing snacks with little nutritional value or skipping recovery altogether. Without the right balance of protein, carbs, fats, and micronutrients, muscle repair slows, energy levels drop, focus declines, and fatigue builds over time—stalling progress and increasing the risk of overuse injuries.

The Right Nutrients for Growth, Recovery & Performance

High-quality protein, clean carbs, healthy fats, and essential micronutrients are vital for adolescent athletes.

For adolescent athletes, nutrition isn’t just about replacing energy—it’s about providing the building blocks for long-term strength, resilience, and healthy development. LMB’s 20g of premium grass-fed whey protein supports muscle repair, lean growth, and tissue recovery. Its 2:1 carb-to-protein ratio, from both fast- and slow-release sources, restores glycogen efficiently while sustaining performance. MCTs supply clean energy, while prebiotic fiber aids nutrient absorption and gut health. Chelated minerals and 12 essential vitamins work to strengthen bones, support immunity, optimise energy metabolism, and maintain muscle function—ensuring athletes recover fully and perform at their best, session after session.

Signs Your Teen May Not Be Recovering Well

Lingering soreness, low energy, and reduced performance may signal poor recovery.

If your teen is consistently tired after training, struggles to maintain their usual intensity, or experiences more cramps and minor injuries, their recovery nutrition may be lacking. These signs indicate the body isn’t repairing muscle tissue, replenishing energy stores, or restoring hydration effectively—making targeted post-training nutrition essential for sustained progress.

Product Comparisons

How do our Sports Range compare to each other?

What It Is

Need State

When To Use

Key Ingrediets

What It Does

Mixed With

LMB - Lean Muscle Builder

Lean Muscle Protein Shake

On-the Go Nutrition & Energy Boost

Ideal for post-training sessions to maximize muscle recovery and growth.

Whey Protein 

Complex Carbohdyrates 

Vitamins

Provides high-quality proteins and amino acids to stimulate lean muscle growth, improve strength, and support repair following resistance or endurance training.

Milk or Milk Alternative

Protein Boost™

Whey Protein Boosting Shake

Protein Boost

Versatile for anytime use, perfect for supporting muscle recovery and growth post-workout or as a protein boost throughout the day.

Whey Protein 

Vitamins

Supplies 20 g of high-quality whey protein to aid muscle repair, support recovery, and maintain muscle mass throughout the day or after exercise.

Milk or Milk Alternative

Sportonic™

Sports Endurance Drink

Energy Hydration & Electrolyte Replacement

Use before and during sports to boost energy and sustain energy levels and maintain hydration levels.

Fast & Slow Carbohydrates 

Electroytes 

Vitamins

Provides sustained energy, replenishes fluids, and replaces essential electrolytes lost during intense physical activity—supporting optimal hydration and peak performance.

Water

AGF Athletes Go Food™

Athlete's On-The-Go Shake

On-the Go Nutrition & Energy Boost

Perfect for times when a traditional meal isn't possible, ensuring continued energy and nutrient intake.

Whey Protein (Hormone Free)

Fast & Slow Carbohydrates 

Vitamins

Delivers a quick, balanced source of protein, carbohydrates, and micronutrients for sustained energy, endurance, and recovery when a full meal isn’t possible.

Milk or Milk Alternative

SP1™

All-In-One Sports Performance

All-In-One Sports Support

Perfect for adolescent athletes needing comprehensive support during and after training, competition, or workouts to ensure optimal performance, recovery, and overall health.

Whey Protein 

L-Glutamine,

Opti-MSM,

L-Theanine,

Taurine,

Magnesium,

Vitamins.

Combines targeted nutrients to support muscular repair, regeneration, and glycogen replenishment, prevent cramps, enhance central nervous system function, reduce inflammation and oxidative stress, and support bone, joint, connective tissue, and immune health for all-round athletic performance.

Milk or Milk Alternative

Perfect for adolescent athletes needing comprehensive support during and after training, competition, or workouts to ensure optimal performance, recovery, and overall health.

Key Ingrediets

Whey Protein 

L-Glutamine,

Opti-MSM,

L-Theanine,

Taurine,

Magnesium,

Vitamins.

What It Does

Mixed With

Milk or Milk Alternative

Recovery Boost™

What It Is

Athlete's Recovery Shake

Need State

Muscle Growth & Strength Enhancement

When To Use

Consume after intense training or competition to accelerate recovery and replenish energy stores.

Key Ingrediets

3:1 Carb/Protein Ratio  

L-Glutamine 

Electrolytes 

Vitmamins

What It Does

Supports muscle repair and growth, replenishes glycogen stores, and reduces post-exercise fatigue to accelerate recovery after intense training or competition.

Mixed With

Milk or Milk Alternative

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LMB - Lean Muscle Builder